Tag: stellar evolution

Cosmoknowledge Science & Technology

This Star Seemed Normal, Until Hubble Looked Closer 0 (0)

Hubble just uncovered one of the strangest white dwarfs ever found. What looked like an ordinary stellar remnant turned out to be something far more dramatic, the likely remnant of a stellar merger. In this video, with insights from astrophysicist Dr. Snehalata Sahu, we break down how a tiny carbon clue in ultraviolet light revealed a hidden cosmic collision. Sources: https://www.nature.com/articles/s41550-025-02590-y https://esahubble.org/news/heic2510/ WATCH ANOTHER VIDEO: We Just Found The Fastest Spinning White Dwarf Star https://www.youtube.com/watch?v=WXR_vX1HFfA Ways to support us – Join this channel to get access to the perks: https://www.youtube.com/channel/UCdgpfQ5snGKcP-eqoVXI0pw/join – Check out our merch https://www.cosmoknowledge.com – Donate https://www.buymeacoffee.com/cosmoknowledge SUBSCRIBE [See More…]

Cosmoknowledge Science & Technology

The Largest Star In The Universe 0 (0)

What is the largest star in the universe? The answer Google gives you is WRONG. For years, UY Scuti held the title of the biggest star ever discovered, but new data from the Gaia space telescope and a groundbreaking 2023 study cut its size nearly in half. So which star is actually the largest? WATCH MORE: Largest Structures in the Universe https://www.youtube.com/watch?v=hgyMPz5Bse4 In this video, we break down the real contenders, Stephenson 2-18, WOH G64, VY Canis Majoris, and more, and explain why measuring giant stars is one of the hardest problems in astronomy. From red supergiants that swallow entire [See More…]

Cosmoknowledge Education

Most Massive Black Hole Collision Ever Just Found 0 (0)

Two black holes, too massive to even exist by current theories, just merged 5.7 billion light-years away. The result? A 225-solar-mass monster and a burst of energy brighter than every star in the universe—lasting just 0.1 seconds. Source: https://www.nature.com/articles/d41586-025-02212-7 WATCH ANOTHER VIDEO: How Large is the Largest Black Hole – TON 618? https://www.youtube.com/watch?v=tiV1ac4K9p8 Ways to support us: 1. Join this channel to get access to the perks: https://www.youtube.com/channel/UCdgpfQ5snGKcP-eqoVXI0pw/join 2. Check out our merch: https://www.cosmoknowledge.com 3. Donate: https://www.buymeacoffee.com/cosmoknowledge SUBSCRIBE ► https://goo.gl/PLLFPz —- Website ► https://cosmoknowledge.com/ Instagram ► https://www.instagram.com/itscosmoknowledge Facebook ► https://facebook.com/cosmoknowledge TikTok ► https://www.tiktok.com/@cosmoknowledge Twitter ► https://twitter.com/cosmoknowledge A Cosmoknowledge production. Graphics: [See More…]